Comment on: Supervisory Asymmetric Deterministic Secure Quantum Communication

Shih Hung Kao, Chia Wei Tsai, Tzonelih Hwang

Research output: Contribution to journalArticle

5 Citations (Scopus)


In 2010, Xiu et al. (Optics Communications 284:2065-2069, 2011) proposed several applications based on a new secure four-site distribution scheme using χ-type entangled states. This paper points out that one of these applications, namely, supervisory asymmetric deterministic secure quantum communication, is subject to an information leakage problem, in which the receiver can extract two bits of a three-bit secret message without the supervisor's permission. An enhanced protocol is proposed to resolve this problem.

Original languageEnglish
Pages (from-to)3868-3875
Number of pages8
JournalInternational Journal of Theoretical Physics
Issue number12
Publication statusPublished - 2012 Dec 1

All Science Journal Classification (ASJC) codes

  • Mathematics(all)
  • Physics and Astronomy (miscellaneous)

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